import java.sql.*;

public class Main {
    public static void main(String[] args) {
        // 1、加载驱动
        try {
            Class.forName("com.mysql.cj.jdbc.Driver");

            // 2、获取连接
            Connection connection = DriverManager.getConnection("jdbc:mysql://192.168.13.1/jdbc?characterEncoding=utf-8", "root", "root");
//            if (connection != null) {
//                System.out.println("连接成功");
//            }
            // 3、写sql
            String sql = "select * from user";

            // 4、预编译sql
            PreparedStatement preparedStatement = connection.prepareStatement(sql);

            // 5、有参数设置参数

            // 6、执行sql
            ResultSet resultSet = preparedStatement.executeQuery();

            // 7、遍历结果集
            while (resultSet.next()){
                int id = resultSet.getInt(1);
                String name = resultSet.getString(2);
                String pass = resultSet.getString(3);
                System.out.println(id+"-----"+name+"------"+pass);
            }

            // 8、关闭资源
            resultSet.close();
            preparedStatement.close();
            connection.close();


        } catch (ClassNotFoundException e) {
            throw new RuntimeException(e);
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }


    }

}